1) multiple frequency phase
倍频相位
1.
Based on a study of the phase information gathered from rotary machineries,a fault diagnosis method was proposed in which the time phase signal extracted from the multiple frequency phase was used as the characteristic signal for the diagnosis.
通过对旋转机械相位信息的研究,提出从倍频相位中提取相对时相作为诊断特征量。
2.
In the research of phase information of rotary mechanism,comparatively phase is extracted from multiple frequency phase as diagnosing feature.
通过对旋转机械相位信息的研究,提出从倍频相位中提取相对时相作为诊断特征量,讨论了相对时相所包含的故障信息及在不同故障种类中的表征。
2) phase changes of vibration near twice the net frequency
二倍频相位变化
4) phase-locked frequency multiplication
锁相倍频
1.
This paper introduces the working principle of the phase-locked loop circuit CD4046 and double D trigger CD4013,and gives the realization of phase-locked frequency multiplication based on CD4046 and CD4013 in automatic register controller syste
介绍了锁相环集成电路CD4046和双D触发器CD4013的工作原理,给出了在自动套色控制系统中利用CD4046和CD4013实现的锁相倍频电路。
5) frequency multiplication phase-locked
锁相倍频
1.
Aiming at the existing problem in harmonics measurement of power system,the paper(presented) a collecting method based on frequency multiplication phase-locked.
针对电力系统谐波测量方法存在的问题,提出了一种基于锁相倍频采集方法。
2.
The tested part adopts a referenced command current optimize PWM detecting method based on signal s time domain vertical property,and high speed simulating switch is controlled by frequency multiplication phase-locked circuit and EPROM unit.
其中检测部分采用了基于信号时域正交特性的参考指令电流优化PWM检测方法,并通过锁相倍频电路和EPROM单元来控制高速模拟开关,电路简单,便于实现。
3.
The paper, for the harmonics detection method used in Power system, presents an sampling method based on frequency multiplication phase-locked.
本论文主要针对电力系统中采用的谐波测量方法而提出的一种基于锁相倍频采集方法,通过锁相环对电力波形进行实时跟踪,既解决了频谱泄漏对谐波测量精度的影响,又实现了快速的,准确的,实时性的测量。
6) frequency multiplier and phase detector
倍频鉴相
1.
This paper explored the FPGA tech- nology,and the output of feedback signals from the grating sensor by means of FPGA can be accepted by DSP module after frequency multiplier and phase detector.
光栅信号经过FPGA倍频鉴相后,通过8254计数器获得反馈位置信息,DSP模块根据反馈的位置信息完成伺服电机的闭环控制。
2.
It is introduced how to design programmability frequency multiplier and phase detector of variety frequency multiplication constant with one device of ispLSI1032.
用一片ispLSI10 32设计了一种任意倍频系数的可编程倍频鉴相逻辑电路 。
补充资料:倍频
CPU的倍频,全称是倍频系数。CPU的核心工作频率与外频之间存在着一个比值关系,这个比值就是倍频系数,简称倍频。理论上倍频是从1.5一直到无限的,但需要注意的是,倍频是以0.5为一个间隔单位。外频与倍频相乘就是主频,所以其中任何一项提高都可以使CPU的主频上升。
原先并没有倍频概念,CPU的主频和系统总线的速度是一样的,但CPU的速度越来越快,倍频技术也就应允而生。它可使系统总线工作在相对较低的频率上,而CPU速度可以通过倍频来无限提升。那么CPU主频的计算方式变为:主频 = 外频 x 倍频。也就是倍频是指CPU和系统总线之间相差的倍数,当外频不变时,提高倍频,CPU主频也就越高。
一个CPU默认的倍频只有一个,主板必须能支持这个倍频。因此在选购主板和CPU时必须注意这点,如果两者不匹配,系统就无法工作。此外,现在CPU的倍频很多已经被锁定,无法修改。
相关术语:外频
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条